PLANET DVR-1670 - Manual (Page 3)

3
6
UTP Network
Interface
Connect to your switch or hub.
RS-485
For PTZ camera connection. You may refer
to Appendix B of our manual to know the
pin definition.
External Alarm
Input
4/8/16 Alarm in.
7
Relay Output 2/4 Alarm out
8
AC Input
100V~240VAC
External Alarm In/Out Connection
Alarm input port：
G (GND)：Connect the GND of sensor.
1~16：Alarm input, support normal open/normal close.
0：Reserved.
Alarm output：
1G~4G：4 relay output.
Alarm output connection